Products produced by manufacturing companies are always required to meet the requirements set by customers. Manufacturing companies need to maintain product quality by involving internal company components and external partners by using integrated information technology to become supply chain quality integration. All components in the supply chain flow must be committed to maintaining product quality in their respective roles. The research aims to ensure that technology information integration can impact firm performance through supply chain quality integration and resilience. Data collection on manufacturing companies in Java using purposive sampling found 162 companies that had received ISO certification. Respondents were determined to be employees at the middle management level and had worked for a minimum of 3 years. Data processing used partial least squares version 4 to answer all research hypotheses. The data processing results showed that information technology integration influenced supply chain quality integration by 0.588 and supply chain resilience by 0.523 and had no significant effect on increasing firm performance. Supply chain quality integration influences supply chain resilience by 0.288 and increases firm performance by 0.496. Lastly, Supply chain resilience has a positive and significant effect on increasing firm performance by 0.169. The research results provide a practical contribution to the company's top management in maintaining the role and function of technology information integration and the ISO system in maintaining supply chain quality integration. Theoretical contribution to enrich the theory of total quality management and supply chain management.

In today's rapidly changing business environment, companies need to be dynamic, adapting their internal processes to respond effectively to external changes. Information Technology has become crucial for businesses to enhance their ability to manage and adapt to change. This study examines East Java manufacturing companies that have heavily invested in sustainable IT systems to enhance their supply chain responsiveness and resilience through improved purchasing strategies and production flexibility. The study collected data from companies that had implemented IT for at least three years, with respondents being permanent employees with a minimum of two years' experience. Analysis of 108 survey responses using SmartPLS 4 revealed significant impacts of IT implementation on purchasing strategy (0.610), production flexibility (0.363), and supply chain responsiveness (0.164). Furthermore, purchasing strategy influenced production flexibility (0.367), supply chain responsiveness (0.348), and resilience (0.166). Production flexibility also affected supply chain responsiveness (0.348) and resilience (0.343), while responsiveness impacted resilience by 0.306. These findings provide a practical contribution for functional managers in companies regarding the importance of IT investment in developing effective purchasing, production, and marketing strategies to meet market demands swiftly. The research contributes to supply chain strategy and resilience theory while highlighting the significance of strong collaboration with external partners for top management.